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源代码
<!DOCTYPE htML> <html> <body> <img src="planets.gif" width="145" height="126" uSEMap="#planetmap"> <;map name="planetmap"> <area id="venus" Shape="circle" coords="124,58,8" alt="The planet Venus" href="venus.htm"> </map> <p>The alternate text for Venus is: <script> document.wrITe(document.getElementById("venus").alt); </script> </p> </body> </html>
运行结果
返回图像映射某个区域的坐标
源代码
<!DOCTYPE html> <html> <body> <img src="planets.gif" width="145" height="126" usemap="#planetmap"> <map name="planetmap"> <area id="venus" shape="circle" coords="124,58,8" alt="Venus" href="venus.htm"> </map> <p>Venus coordinates: <script> document.write(document.getElementById("venus").coords); </script> </p> </body> </html>
运行结果
返回一个区域的href属性的锚部分
源代码
<!DOCTYPE html> <html> <body> <img src="planets.gif" width="145" height="126" usemap="#planetmap"> <map name="planetmap"> <area id="venus" shape="circle" coords="124,58,8" alt="Venus" href="venus.htm#description"> </map> <p>The anchor part of the href attribute for Venus is: <script> document.write(document.getElementById("venus").hash); </script> </p> </body> </html>
运行结果
返回的主机名：图像映射的某个区域的端口
源代码
<!DOCTYPE html> <html> <body> <img src="planets.gif" width="145" height="126" usemap="#planetmap"> <map name="planetmap"> <area id="venus" shape="circle" coords="124,58,8" alt="Venus" href="venus.htm"> </map> <p>The hostname:port for the "Venus" area is: <script> document.write(document.getElementById('venus').host); </script> </p> <p><b>Note:</b> If the port part is not specified in the URL, or is 80 (which is default), some browsers will not display the port part.</p> </body> </html>
运行结果
返回图像映射的某个区域的hostname
源代码
<!DOCTYPE html> <html> <body> <img src="planets.gif" width="145" height="126" usemap="#planetmap"> <map name="planetmap"> <area id="venus" shape="circle" coords="124,58,8" alt="Venus" href="venus.htm"> </map> <p>The hostname for the "Venus" area is: <script> document.write(document.getElementById('venus').hostname); </script> </p> </body> </html>
运行结果
返回图像映射的某个区域的port
源代码
<!DOCTYPE html> <html> <body> <img src="planets.gif" width="145" height="126" usemap="#planetmap"> <map name="planetmap"> <area id="venus" shape="circle" coords="124,58,8" alt="Venus" href="venus.htm"> </map> <p>The port for the "Venus" area is: <script> document.write(document.getElementById('venus').port); </script> </p> <p><b>Note:</b> If the port part is not specified in the URL, or is 80 (which is default), some browsers will just display 0 or nothing.</p> </body> </html>
运行结果
源代码
<!DOCTYPE html> <html> <body> <img src="planets.gif" width="145" height="126" usemap="#planetmap"> <map name="planetmap"> <area id="venus" shape="circle" coords="124,58,8" alt="The planet Venus" href="venus.htm"> </map> <p>The alternate text for Venus is: <script> document.write(document.getElementById("venus").alt); </script> </p> </body> </html>
运行结果
返回图像映射某个区域的坐标
源代码
<!DOCTYPE html> <html> <body> <img src="planets.gif" width="145" height="126" usemap="#planetmap"> <map name="planetmap"> <area id="venus" shape="circle" coords="124,58,8" alt="Venus" href="venus.htm"> </map> <p>Venus coordinates: <script> document.write(document.getElementById("venus").coords); </script> </p> </body> </html>
运行结果
返回一个区域的href属性的锚部分
源代码
<!DOCTYPE html> <html> <body> <img src="planets.gif" width="145" height="126" usemap="#planetmap"> <map name="planetmap"> <area id="venus" shape="circle" coords="124,58,8" alt="Venus" href="venus.htm#description"> </map> <p>The anchor part of the href attribute for Venus is: <script> document.write(document.getElementById("venus").hash); </script> </p> </body> </html>
运行结果
返回的主机名：图像映射的某个区域的端口
源代码
<!DOCTYPE html> <html> <body> <img src="planets.gif" width="145" height="126" usemap="#planetmap"> <map name="planetmap"> <area id="venus" shape="circle" coords="124,58,8" alt="Venus" href="venus.htm"> </map> <p>The hostname:port for the "Venus" area is: <script> document.write(document.getElementById('venus').host); </script> </p> <p><b>Note:</b> If the port part is not specified in the URL, or is 80 (which is default), some browsers will not display the port part.</p> </body> </html>
运行结果
返回图像映射的某个区域的hostname
源代码
<!DOCTYPE html> <html> <body> <img src="planets.gif" width="145" height="126" usemap="#planetmap"> <map name="planetmap"> <area id="venus" shape="circle" coords="124,58,8" alt="Venus" href="venus.htm"> </map> <p>The hostname for the "Venus" area is: <script> document.write(document.getElementById('venus').hostname); </script> </p> </body> </html>
运行结果
返回图像映射的某个区域的port
源代码
<!DOCTYPE html> <html> <body> <img src="planets.gif" width="145" height="126" usemap="#planetmap"> <map name="planetmap"> <area id="venus" shape="circle" coords="124,58,8" alt="Venus" href="venus.htm"> </map> <p>The port for the "Venus" area is: <script> document.write(document.getElementById('venus').port); </script> </p> <p><b>Note:</b> If the port part is not specified in the URL, or is 80 (which is default), some browsers will just display 0 or nothing.</p> </body> </html>
运行结果
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